Merge pull request #1216 from tootsuite/fix-default-locale-regression

Fix #1165 - Default locale no longer breaks form submissions

app/controllers/application_controller.rb

 # frozen_string_literal: true
 
 class ApplicationController < ActionController::Base
-  include Localized
-
   # Prevent CSRF attacks by raising an exception.
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
 
   force_ssl if: "Rails.env.production? && ENV['LOCAL_HTTPS'] == 'true'"
 
+  include Localized
   helper_method :current_account
 
   rescue_from ActionController::RoutingError, with: :not_found
@@ -41,7 +40,6 @@ class ApplicationController < ActionController::Base
 
     # If the sign in is after a two week break, we need to regenerate their feed
     RegenerationWorker.perform_async(current_user.account_id) if current_user.last_sign_in_at < 14.days.ago
-    return
   end
 
   def check_suspension

app/controllers/concerns/localized.rb

@@ -4,13 +4,25 @@ module Localized
   extend ActiveSupport::Concern
 
   included do
-    before_action :set_locale
+    around_action :set_locale
   end
 
+  private
+
   def set_locale
-    I18n.locale = current_user.try(:locale) || default_locale
-  rescue I18n::InvalidLocale
-    I18n.locale = default_locale
+    locale = default_locale
+
+    if user_signed_in?
+      begin
+        locale = current_user.try(:locale) || default_locale
+      rescue I18n::InvalidLocale
+        locale = default_locale
+      end
+    end
+
+    I18n.with_locale(locale) do
+      yield
+    end
   end
 
   def default_locale

app/controllers/oauth/authorizations_controller.rb

 # frozen_string_literal: true
 
 class Oauth::AuthorizationsController < Doorkeeper::AuthorizationsController
-  include Localized
-
   skip_before_action :authenticate_resource_owner!
 
   before_action :store_current_location
   before_action :authenticate_resource_owner!
 
+  include Localized
+
   private
 
   def store_current_location

app/controllers/oauth/authorized_applications_controller.rb

 # frozen_string_literal: true
 
 class Oauth::AuthorizedApplicationsController < Doorkeeper::AuthorizedApplicationsController
-  include Localized
-
   skip_before_action :authenticate_resource_owner!
 
   before_action :store_current_location
   before_action :authenticate_resource_owner!
 
+  include Localized
+
   private
 
   def store_current_location